Starting at $2,500.00
  • Usually ships in 4-6 weeks



  • Detects upset conditions in compressed air systems
  • Compressed Air Monitoring and Alarm System
  • Turn key measurement
  • Strobe lamp and pulsing audible alarms
  • Measuring ranges:
    • Std dew/frost point: -40 to 203°F (-40 to 95°C)
    • Low dew/frost point: -76 to 203°F (-60 to 95°C)
    • Pressure: up to 400 psia (0 to 27.6 bar)
  • Accuracy:
    • Dew/Frost Point: ±1°C or ±2°C
    • Pressure: At 25°C, ±1 mbar from 600 to 1200
    • mbar; over -40°C to +125°C range, ±5 mbar
  • IP65 water resistant/dust tight enclosure


The Edgetech SENTRY Compressed Air Monitor features a smart multi-sense probe that continuously monitors the dew/frost point and pressure of compressed air systems to detect compressor or dryer failures and system pressure leaks. The SENTRY features a strobe lamp and pulsing horn plus an alarm relay contact that activate when a programmable, low pressure or high dew/frost point alarm trip point is detected. Either condition triggers the alarms. It also has a local display of the measured pressure and dew/frost point of the compressed air system plus 4 to 20 mA analog outputs, one each for measured pressure and dew/frost point at atmospheric pressure. The SENTRY is a complete system, ready for out-of-the-box installation.

Applications for the SENTRY include:

  • Compressed air headers
  • Point of use compressed air
  • Dry air systems for critical process
  • Monitoring fluidized bed dryers
  • Monitoring instrument air systems
  • Pharmaceutical packaging
  • Laboratories and clean rooms
  • Sensitive product storage
  • Monitoring purge delivery systems